Natural Chrysanthemum Crystal Stone from the Daxi River, Liu Yang City, China, with two crystal flowers otherwise known as a double crystal Chrysanthemum stone. The white flowers,resembling Chrysanthemum flowers from which the crystal stone got its name,,,in the stone is white calcite that formed in the rock over a period of 20 million years and the rough stone is found among the rocks in the bottom of the Daxi River where they are broken open to see the calcite chrysanthemum flower formation.